Need some input (device size) & solving some long standing problems

Today i had a fairly... good ish session, nothing much to write home about with the MGX, the peaks were noticeable but nothing spectacular and i felt after 45 mins it was time to end things for today.

I don't know why but i decided to break out my Progasm JR, a device that did nothing for me in the past and my last use of this was around 6 months ago. When i used it all those months ago it would actually fill my ass to the point where i could feel every contour and feel it aggressively pressing on my prostate and usually this would be enough to kill the session, just numbing everything within seconds. It had hints of mild discomfort at times.

Today though i found it went in very easily, almost too easily to both my puzzlement and pleasure.

The session peaks were much higher and more frequent, at one point i thought the pleasure was going to go even higher. What i found though was that the river of warmth/pleasure that i only used to feel when i was really erect and aroused was there constantly whilst using this device. Obviously it was putting constant contact pressure on the prostate, something other devices probably weren't doing as forcefully.

So it leads me to this point:

Q1. Why is it now suddenly easier to get in my ass? why does it feel like its not 'large' anymore/ have i widened my anal cavity? it might explain why i cannot seem to get the same heights of pleasure out of my eupho and peredise's (devices that ALWAYS worked no matter what)

Q2. Will this mean its going to get bigger again? do i now need to start looking at Progasms/Maximus/Vice's?

Q3. I thought that this all my be because i started doing some anal dildoing with a large silicone dildo (5 inch, not too large but i'm a small guy!), which at times was uncomfortable, but now seems pretty good as a 'fit' i hope im not damaging myself in some way by doing this.

In many ways it was my best session to date, i think i had a series of mini orgasms, one in particular i felt at the tip of my penis, just like when it gets sensitive when you cum.

I also found if i did a little sort of 'Grind', subtly on my hips, it felt like i was about to blow a load!

Another interesting observation/thing that might help some out there:

I found that when using my MGX if the pleasure was waning using the 'confident boomerang' technique (waiting for the pleasure to return) if i a did a small contraction and immediately let it go it would get things going on demand in between waiting for it happen naturally. Just a good tip is all 😉 (stops you being bored and keeps the prostate 'ticking')